Download 2018 Honda Ridgeline Engine Block Heater Installation Instructions – 1. Allow the engine and all cooling system components to cool down. 2. Disconnect the negative cable from the battery: • Wrap a shop towel around the hood latch. • Remove the front bulkhead cover. • Remove the intake air tube. • Disconnect the negative cable from the battery. 3. Remove the three self-tapping screws from the left front wheel arch protector. 4. Remove the left front wheel arch protector. 5. Repeat steps 3 and 4 on the right side of the vehicle.
6. Remove the front bumper: • Using a flat-tip screwdriver, remove the H emblem from the front grille. • Remove the front upper grille. • Apply masking tape as shown. • Remove the four self-tapping screws, eight clips, four washer-bolts, and four flange bolts. • With the help of an assistant, release the seven retaining tabs on each side. • Release the front grille. • With the help of an assistant, remove the front bumper and unplug the vehicle connectors. Place the front bumper on a blanket. 7. Open the positive cable cover and disconnect the positive cable from the battery.